Automatic pump assembly primer



March 18, 1952 A. s. soar-:RG 2,589,443

AUTOMATIC PUMP ASSEMBLY PRIMER iled NOV. 5, 1948 INVENTOR.-

B E R G A NoLD s. o

ATT'YS Patented Mar. 18, .11952 UPNFI'TED STATES AUTOMATIC PUMP ASSEMBLY :PRIMER Arnold S. Scherp, fElm'hurst, i111., -assignor .to .Sochris Development Company, Chicago, 3111., ra corporation offlllinois Application November 5, 1948, Seria'lNo.55'855'6'7 -7 Claims. (Cl. 2103-203) .This :invention relates to 'new .and v.useful Slimprovements ilin .automatic pump assembly primer adapted for '.usewith 'a .pumprof Jthe type'utilizing aiiiquidccolumnlfor actuating the pumping action of fa "piston :assembly `suspended 1in the `'source of water.

l'The lprimary-objeot of .this `invention is to lprovide device .'whereby fa 'part of .the pumped liquid .is .directed back ito fthe liquid column v"of th'e pumpfassemblyfsothat at all times thecolumn of liquid :extends to fthe `pul's'ator or piston .means 'which-exertsa pressure on *said 'column'for `operf-Another fobjectsof thislinvention is to provide an automatic 'primer that permits the now of liquid `'irom 'fthe pump Itherethrough `to the :reservoir lbut 'directs some of the pumped liquid back 'to the pump `*assembly 'whenever pumping operation ceases.

.1A furtherfbject' of 'this invention is Ato provide such fa device having a movable 'Valve member adapted fito v'receive the Aliquid 'from the pump, be move'd'by 'the '-liqu'id pressure to direct wvit'to the Tliquid 'reservoir 'and when in "such operating position lo substantially prevent such Ypumped liquid from returning to the pump but which, when 'the pump ceases operation, will return to normal 'position "and uncover "a Vreturn p'ort'leading to the pump 'assembly 'through which vliquid fromthe reservoir mayilow to maintain-adequate liquid fin the fpump assembly.

AStill -a further object of this invention Ais to provide t'an automati'cpump primer which will, even during pumping operations, permit V'some of the pumped liquid to go back to the Npump assembly lshould it 4be needed.

Other objects and 'advantages will 'become apparent from the following specication ,.fF-ig. i1 fis .a .schematic I`view `showing 1a pump assembly utilizing "the Lautomatic pump primer embodying this invention. l

Eig. 2 'is an enlarged sectional view of the automatic primer itself.

Fig. 3 is a sectionalwiew'similar to Fig. 2 but in operating position.

`Fig. 4 is a cross sectional View of the primer device taken along line 4-4 of Fig. 2.

In detail, -I indicates a wellcasing 'within which is suspended a pumping mechanism 2. A Lpulsator S3 Yis fa Vdevice for `.Varying .the pressure Ton the Iliquid rlumniilling the 'iwell fcasing TI., iwll known :in the art, .and is connected with casing I by means of a conduit 4. The automatic primer or feed back embodying this invention is indicated tby @5 'and a iconduit ..6 :leads .from .casing aI to primer i5. .A .conduit 1 connects primer f5 'withipulsator *3 and :conduit 8 Yconnects thejprimer 5 with La .liquid .reservoir 9.

liR'e'ierring :now to Fig. 2, l.which 'illustrates kthe details of the automatic pump primenzthetprimer comprises va .hollow lcasing IIJ :provided 'with Va cover `I I., van in'let chamber I2, :an `intermediate outlet I31andrra'n upper :outlet I4. .A2-.central verltical ltube I5 :provides :a :channel :leading :from inlet unam-ber |2 Lto upperoutlet E14. .Justlbelow the nupper :outlet i4 '.tube :ILS its :provided with a .port I6, connecting rwith ia passageway I'I leadmg Ito outlet I3 around "the tube its.

`Within 'tube I5 fis positioned :a vertically :mevable :capped tubular valve vmen'i'b'er I8 havmg Youtlet ports V|39 in its iside wall :adjacent :its diep. .Asmallpoiit'l is Jin the wallfo'f member 18 near its lower `en'd Sand iposition'ed lso :as to align with port 'l 6 "when member 3l 8 is iin .its Aupper :operative position. -Afspring f2 I extends vbetween 'the fcover 'I 'I fandthe topfoimember SI 8 toperinititsupward sliding movement'duringfpumpmg .operati-eussent to .return :it to fnormal *position when 'the ipum'p is if-not K.in operation.

'riletfch'amfber I2 isnormaiiyclosediby-'afspring valve assembly :comprising f'a'n faper'tured fcap 222, closure fm'eniber 22.3, valve stem 'J2Y'4 Land spring 25. 'It fis obvious that 'pressure through "the Taper'- tures iin A.cap 2-2 I'against imemb'er 123 L.will open the 4vvalve against the 'pressure `'of :spring ".25 fto admit 'liquid to chamber I2. i

"In pperatiOn, l'iqui'd from Y.pump mechanism .is pumped 'through -rconduit "6 5to 'the primer i5. The pressure vlof ithe pumped fliqu'id 'fop'ens Ethe valve member l'2?3 ito :inlet 'chamber i2 and 'the liquid ":dows upwardly'into 'tubular 'valve member |18 fand causes 'it fto :move "upwardly #against the .action -ro'f fsprmg :i2-.I until :it `'1re/aches fthe 'position vf's'hown *in .Fi'g. 'LPorts 11.9 lalign with foutlet 'am and the "liquid flows :therefrom ithrough conduit 8 "to reservoir v9. During this operation @small port'fz'u "which lis I'aligned with 'port fI`6 :in tube "I-'5 provides lescape ffor any air 'orfother gas "which may fhave gentered thrdugh '-por't fI'f3. In 'the fabsence'l of poril l2`0 tsuchair'orfotlier Igas would form a pocket which lwould reduce the fe'ficiency "o'f thepump. A

4VWhen tb'e pumping operation A'ceases 'valve member 123- `dioses f and :tubular fmember I8 yreturns .to the 'positionfshown in Fig. Ein 1pos'rt'ion the port I6 is connected with'outletIfil'wliichleads tot'ne reservoiri9. 'Thusdheliquidiromreservoir '9 -ris fallowed to :How `baok .into .outlet M -through port I6 and passageway I 1 to outlet I3 from which it returns to the water column on which the pulsator operates, if it is needed. Obviously if the water column is adequate and there is no air space between it and the pulsator only enough liquid will iiow from the reservoir to fill conduit fl and conduit 8 through the primer. In this manner the water column is always maintained against the operative mechanism of the pulsator which is Vessential to the proper and efficient operation of the pump assembly.

I claim:

1. An automatic pump assembly primer for combination with a pump and a liquid reservoir comprising a hollow casing provided with an inlet port and two outlet ports, Va channel connecting the inlet port with one of the outlet ports, a movable valve member in said channel normally closing it, a separate passageway vconnecting the two outlet ports through said channel, said valve member movable under pressure of liquidentering the inlet port to close said passageway and open said channel to permit liquid to ilow therethrough, said valve member returnable to its original position to open the passageway to permit liquid to flow from one outlet -to and from the other outlet when liquid ceases to be forced into the inlet port.

. 2. An automatic pump assembly primer for combination' with a pump and a liquid reservoir comprising a hollow casing, an inlet pump port, an outlet port, a reservoir port, a channel leading from the inlet pump port to the reservoir por t,a separate passageway leading from the outlet port to the channel, a slidable valve member in said channel normally closing the channel below the passageway but movable 'to open the channel and close the passageway to alternately permit ow from the' inlet port through the channel to the reservoir port and from the reservoir port through the passageway to the outlet port. l

3. An automatic pump assembly primer com" prising a hollow casing, an inlet port, an outlet reservoir port and an outlet primer port, an irreversible inlet valve in said inlet port, a channel leading from said inlet port tovsaid reservoir port,

a passageway leading from said outlet primer port r and joining the upper part of said channel below the reservoir port, a movable valve in said channel normally positioned below the pointof juncture ofthe passageway and the channel and closing the channel, said valve adapted to be moved upwardly to open the channel to connect the inlet port with the reservoir port and simultaneously close the vpassageway and returnable to open the. passageway to connect the reservoir port with the outlet primer port and close the channel.

4. An automatic pump assembly primer comprising a hollow casingpan-inlet port, an outlet reservoir port and an outlet primer port, a tubular channel connecting the inlet port with the reservoir. port, a passageway leading from the outlet primer port to the upper part of the channel, a slidable tubular valve member normally closing the channel below its upper port, yan-outlet in the .upper side part of said valve memberysaid member movable upwardly in said channel under pressure of water entering said` inlet port to connect saidchannel with the reservoir port through its outlet and to simultaneously close said passageway and means for returning the member to a point below the upper part of the channel to open the passageway from the reservoir port to the outlet primer port.

5. An automatic pump assembly primer comprising a'hollow casing, a lower inlet port adjacent the bottom of the casing, an intermediate primer port, an upper reservoir port, a channel leading from the inlet port to the reservoir port, a separate passageway leading from the primer port and connecting with the upper part of the channel below the reservoir port, a hollow, capped, valve member slidably positioned in said channel below its upper part to close said channel, means resiliently holding it in said position, an outlet port in the 'side of said valve member adjacent its capped top and normally closed by the wall of said channel, said member movable upwardly to align its outlet with the reservoir port to open the channel from the inlet port and at the same time close said passageway, whereby liquid may flow from the inlet port through the channel and out of the reservoir port when in its upper position and whereby in its normal position liquid may iiow from the reservoir port through the passageway and out of the primer port,

6. An automatic pump assembly primer comprising a hollow casing, a lower inlet port adjacent the bottom of the casing, an intermediate primer port, an upper reservoir port, a channel leading from the inlet port to the reservoir port, a separate passageway leading from the primer port and connecting with the upper part of the channel below the reservoir port, a hollow, capped, valve member slidably positioned in said channel below its upper part to close said channel, means resiliently holding it in said position, an outlet port in the side of said valve member adjacent its capped top and normally closed by the wall of said channel, an air vent in the side of said valve member below the outlet port, said member movable upwardly under pressure of liquid entering the lower inlet lport to align its outlet port with the reservoir port and the air vent with the passageway but otherwise closing said passageway, whereby liquid entering the inlet port under pressure will flow through the channel and out of the reservoir port and air will be drawnthrough the vent from the primer port, and when the inflow of liquid -ceases the valve will return to nor* mal position and liquid will iiow from the reser- Voir port through the passageway and mit of the primer port.

7. In combination with a pulsator, a pump and a4 reservoir, an automatic primer comprising a hollow casing having an inlet port, a primer port and a reservoir port, a conduit connecting the pump with the inlet port, a conduit connecting the pulsator with the primer port, a conduit connecting the reservoir port with the reservoir, a channel in the primer connecting the inlet port with the reservoir port, a separate passageway connecting the primer port with the reservoir port, a slidable Valve member in 'said channel normally closing it but movable to open it and close the passageway whereby in closed position liquid from the reservoir will flow therefrom to the pulsator if needed and in open position liquid will be directed from the pump tothe reservoir.

ARNOLD S. SOBERG.

REFERENCES CITED The following references are of recordV in the file of this patent:

UNITED STATES PATENTS Rockwell Mar. 5, 1946 

